Sanding device for motor vehicles



March 23 1926.

| H. PETRUS SANDING DEVICE FOR MOTOR VEHICLES Filed Jan. 13, 1926 Patented Mar. 23, 1926.

UNITED STATES LOUIS H. PETRUS, OF KANSAS CITY, MISSOURI.

SANDING DEVICE FOR MOTOR VEHICLES.

Application filed January 13, 1926. Serial No. 80,985.

To all whom it may concern:

Be it known that I, LOUIS H. Pn'rRUs, a citizen of theUnlted States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Sanding Devices for Motor Vehicles, of which the following is a specification. 1

My invention relates to sanding devices for motor vehicles and the present invention is an improvement over the sanding device disclosed by my United States Letters Patent No. 1,555,153, granted September 29, 1925.

One improvement resides in mounting the lower ends of the sand boxes upon hinges, so that their upper ends can be lowered upon the rear tires of the vehicle to permit ready access to-the openings through which said sand boxes may be filled with sand or other gritty substances. I

A further improvement resides in the fas tening means for firmly securing the upper ends of the sand boxes against the under surfaces of the vehicle fenders, said fastening means being. arranged entirely beneath the fenders where they willbe out ofsight and not mar the appearance of the fenders. Another improvement resides in mechanism whereby the valves which normally close the discharge nozzles at the lower ends of the sand boxes can be either opened together or independently of each other.

Other improvements in certain'details of construction have also been made, and in order that the invention may be'fully understood,reference will now be made to the accompanying drawing, in which:

Fig. 1 is a broken perspective view of a motor vehicle equipped with the invention.

Fig. 2 is a vertical section through one of 1b? sand boxes and the fender against which it its. I

- Fig. 3 is a broken cross section of one of the rear fenders and associate apron, with the upper rear portion of one of the sand boxes secured in position against the under side of said fender. p

Fig. 4' is a fragmentary side elevation, partly in section, of the lower portion of one of the sand boxes and associate parts.

Fig. 5 is a broken elevation of. the instrument board with the mechanism for'open- 'ing the valvesat-the discharge nozzles of the sand boxes. Y

, F gis a s t sa 9 1 Fig. 7 is a broken side elevation of a truck equipped with a modified form of sand box.

I Referringnow more particularly to the 00 parts disclosed by Figs. 1 to 6, inclusive, 2 designates a motor vehicle of conventional form equipped with the usual rear fenders 4-, rear wheels 8 and an instrument board 10.

1.2 designates the sand boxes, or receptacles, which are curved to fit snugly against the undersides of the fenders 4 and in frontv of the rear wheels 8 for the purpose of depositing sand or other gritty substances in the path of said wheels. Each sandbox has an opening in its upper portion through which it may be filled with sand or other gritty substance, and said opening is normally closed by a cover 14.

The lower end of each sand box 12 is provided with a discharge nozzle 16 which is normally closed by a valve 18 similar to those shown in my above-mentioned patent and consisting of a fiat plate which fits snugly against the lower edge of said nozzle 16. The valve 18 is protected from mud by a shield 19 at the'lower end of the sand box' 12 and extending around the front, rear and one end of said valve 18. Each valve 18 is loosely mounted upon guide pins 20 depending from the lower portion of the associate sandbox 12. One or more coil springs 22 are employed for yieldably holding each valve18 in closed position. Each coil spring 22 is connected at its lower end to a short length of cable 2 1- which extends through the Valve 18 andis secured by a clamp 26, while the upper end of each spring 22 is connected to the lower end of a short cable 28, which is connected atits upper end to a tensioning device preferably in the form of a turn buckle 30, the upper eye of which is.

vmounted upon a pin or bolt 32 extending transverselyv through the upper portionof the sand box 12. As shown more clearly by Fig. 2, the turn buckle 30 is arranged beneath the cover 14;, so that when the same is removed access may be had to said turnbuckle 30 to adjust the same for the purpose of regulating the tension of the spring 22.

Each sand box 12 is held in position against the underside of the associate fender 4 by'means of a plate 34 and a fastening device 36. The plate 34; is connected to a suitable portion of the motor vehicle 2," such for I p instance, as the runningboa'rd 38-, while the l es was Fig,- 5,

fastening d i e 361s preferab ynn c edat its lower end to the associate vehicle apron an in such position that when swung Aupwardly to engage the underside of the the fastenin device 36 is disen a ed from G E; C?

the upper end of said sand box 12 the same may swingdownwardly and rest upon the tire 48, so that access may be readily had to the cover when the sand box 12 is to be filled, or the turn buckle 80 adjusted.

'lleferring now to the mechanism whereby the valves 18 may be opened either together or independently of each other for the discharge of sand in advance of both or either rear wheel 8, 50 designates a pair of curved arms secured at their upper portions to the valves 18, and connected at their lower ends I to the rear ends of flexible cables 52 extending forwardly through tubes 5% and secured the face of the plate 54, are spaced apart to admit a larger knob 66 mounted upon a shank 68 which is fixedly secured to the' plate and extends through an opening 70 in the instrument board 10. A coil spring 72 extending around the shank 68and interposed between the instrument board 10 and a washer 7 L, yieldably holds the plate 64- against the instrument board 10. The washer 74: is held. from displacement upon the shank 58 by a nut I76 and operates in a. tubular guide 78 secured to the underside of the instrument board 10.

lVhen it is desired to discharge sand from only one of the sand boxes 12, the proper knob 58 is pulled outwardly towards the driver, and when it is desired to'simultaneously discharge sand from both sand boxes 12 the knob 66 is pulled outwardly to cause the plate 6% to pull both of the knobs 58 outwardl The cables 52 are normally held slack to permit the valves 18 to remain closed, by coil springs 80 secured to eye bolts 82 and clamps 845, which latter are secured to the cables 52. The clampsS l also prevent the valves 18 and the springs 22 from being-subjected to undue strain when said "valves 18 are opened by abutting the rear ends of the tubes and thereby checking the forward movement of the cables 52.

' In the modified-form, Fig. 7,1 have shown the-sand box as ailants as ease -si e of the body 2" of a heavy duty truck. The sand box 12" is filled through an opening in its upper portion which is normally closed by a cover 14 while the lower portion of said sand box has a discharge nozzle l6 similar in construction to the nozzle 16 and from which the discharge of sand may be controlled by the same type of mechanism. The nozzle 16* is arranged to discharge upon the wheel 8 instead of in advance of said wheel, so that the sand will be carried around under the wheel whether the same be traveling forward or backward. It is to be understood that a sand box will be arranged over each wheel 8.

While I have referred to'the receptacles 1.2 and 12, as sand boxes it is to be understood that they .may be supplied with any gritty substance that will prevent the vehicle wheels from skidding. I also reserve the right to such changes .and modifications 1n the construction shown and described as properly fall within the spirit and scope of the invention as claimed.

Having thus described my invention, What I claim and desire to secure by Letters Patent, is:

1. In a sanding device for motor vehicles, a receptacle adapted to fit against the inner surface of the vehicle fender and provided with an inlet and an outlet, means operably connecting the lower portion of said receptacle to the vehicle so that its upper portion may be lowered to expose the inlet, and securing means for holding the upper portion of the receptacle in raised position.

2. In a sanding device for motor vehicles, a receptacle adapted'to fit against the vehicle fender and provided with aninlet and an outlet, hinged means operably connecting the lower portion of said receptacle to the vehicle so that its upper portion may be lowered to expose the inlet, and securing means for holding the upper portion of the recep tacle in raised position. 4

In sanding devices for motor vehicles, receptacles adapted to fit against the inner surface of-the vehicle fenders and provided with inlets and outlets, means operably connecting the lower portions of said receptaeles to the vehicle so that their upper por-.

tions may be lowered to expose the inlets, and fastening'devices pivotally connected to the vehicle for holding the upper portions of the receptacles in raisedposition.

4:. In a sanding device for motor vehicles, a receptacle having a discharge nozzle, a valve, spring means arranged within the re.- ceptacle for yieldably holding said valve in closed position against the lower edge of said nozzle, anda turnbuckle for regulating the tension of said spring means. i i

In a-sandinpdevice-for motor vehicles,

a receptacle having a discharge-nozzle,

valve, springineaus arranged within the re ceptacle for yieldably holding said valve in closed position against the lower edge of said nozzle, and a shield on the receptacle extending around the nozzle and below said valve.

6. In sanding devices for motor vehicles,

receptacles adapted to fit against the rear wheel fenders of the vehicle and provided with discharge openings, valves, spring means for yieldably holding said valves in position to close said openings, connections whereby either valve may be opened independently of its companion, and means for simultaneously actuating said connections to cause the valves to open together.

'7. In sanding devices for motor vehicles, receptacles adapted to be mounted upon the motor vehicle and provided with discharge :openings through which sand can be distributed in the path of the vehicle wheels, valves, spring means for yieldably holding said valves in position to close said openings, a cable for each valve to open the same, a knob for each of said cables so that the same may be operated to independently open the respective valves, a plate against which said knobs normally rest, and a knob fixed to said plate and whereby the same may be operated to efi'ect simultaneous operation of the two first-mentioned knobs and the.

valves.

In testimony whereof I aiiix my signature.

LOUIS H. PETRUS. 

